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Diamond nucleation on surfaces using carbon clusters

Published online by Cambridge University Press:  03 March 2011

R.J. Meilunas
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208–3108
R.P.H. Chang
Affiliation:
Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208–3108
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Abstract

Thin solid films of C60 and C70 have been used as nucleating layers for the growth of diamond thin films on a variety of substrate surfaces, including metal, insulator, and semiconductors. Compared to other forms of carbon, such as graphite, amorphous carbon, soot, etc., it is found that the nucleation density on a C70 film is equivalent to that of diamond seeds themselves. On the other hand, diamond nucleation on a C60 film is less favorable. We argue from our experiments that the reason for C70 film to have such favorable nucleating properties is its chemical stability and geometry. A working model is proposed to explain the nucleation of diamond on solid C70 films. Application of this work extending to the growth of diamond on a wide range of substrates is also discussed.

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Copyright
Copyright © Materials Research Society 1994

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